Loom for weaving tufted fabric.



G. F. HUTCHINS.

Looml FoR wEAvlNG TUFTED FABRIC.

APPLICATION FILED MAY 28| 1914.

Patented June 8, 1915.

WMM/3% in sra'rns PATENT Enron.

GEORGE F. HUTCHIN' 0F WECESTER; MASSACHUSETTS, ASSIGNGR T0 CBOMPTON &KNOWLES LOOM WORKS, 0F WGRCESTER, MASSAGH'USETTS, AOBPORATION 0Fmnssnenusm'rs. l

LOOM FOB WEAVING TUFTED FABRIC.

T0 all 'whom it may concern j Be it known that I, GEORGE F. HUTcmNs, acitizen of the United States, residing at Worcester, in the county ofWorcester and' State .of Massachusetts, have invented a new and usefulLoom for Weaving Tufted Fabric, of which the following is aspecification.

rThis invention relates to looms for Weaving tufted fabrics of the typeshown and described in United States Letters Patent No. 490,237, inwhich tuft yarn carriers or spools are successively moved into positionto supply the tuft yarn for forming the fabric.

In a loom of this type the full number of tuft yarns to constitute thetuft illing for the entire width of the rug for a single pick are woundupon one or more spools arranged in axial alinement upon a tuft yarncarrier. Each separate tuft yarn is brought down into a yarn tube, thesetubes being arranged in adjacent parallel relation upon the carrier.

The carriers which contain thevrequired tuft yarn for the successivepicks of the design are detachably mountedupona carrier chain andprovision is made for successively detaching the separate carriers fromthe chain and for moving the detached carrier downward to carry the tuftyarn in the tubes between the warp threads thereby causing the ends ofthe tufted yarns to be inserted between the warps. The carrler and tubesare thereafter raised and the tuft yarns are cut 0H at the proper lengthto form the pile of the fabric. In order that the severed pieces of yarnmay be of uniform length and that only the necessary amount of yarnshall be cut off at each operation, it has been customary to providefriction devices en. gaging the carrier spools for retarding theunwinding of thel yarn. This method of construction is reasonablysatisfactory until one or more of the tuft yarns becomes nearlyexhausted upon the spool. When this occurs the yarn .will slip freelythrough the tubes and an irregular and excessive length of yarn may bethus inserted in the design To prevent this occurrence it is necessaryto replenish the spools as soon as any of the tuft yarns become loosenedin the manner described. As a particular tuft yarn VAordi? narily comesinto operative positionv 'only once or twice during the 'weavingnf eachrug design, it is evident that only a short Specification of Letters:`Patent.

Patented June 8, 1915.

Application led May 28, 1.914. i Serial No. 841,611.

length of each tuft yarn is required for each rug. The length of eachyarn Wasted by the procedure outlined has been found sufcient to supplythat particular part of the design for several additional rugs.

It is the object of my invention to provide improved means for retardingthe feeding ofthe tuft yarns through the tubes, independently of thefriction exerted upon the carrier spools, to the end that the yarn maybe used substantially to its full length before replenishment becomesnecessary.

V With this object in view my invention consists in the improvedfriction device which will be hereinafter described and moreparticularly pointed out in the appended claims.

A preferred formbof my invention together with a modification thereof isshown in the drawings, in which- Figure 1 is a side elevation showing aportion of a carrier with the yarn tubes and spool mounted thereon;Fig.' 2 is a view similar to Fig. 1 but showing the yarn upon the spoolexhausted; Fig. -3 is an enlarged sectional view of certain of the yarntubes; Fig. 4 is a transverse sectional view taken along the line 4 4 inFig.l 3; and Figs. 5 and 6 are sectional and side elevations of amodified form of my friction device.

ln Fig'. 1 l have shown a carrier 10 with a spool 11 rotatably 'mountedthereon. rlihe spool is provided at each end with a gudgeon which turnswithin a recess in an upwardly extending arm 12. A spring arm 13provides meansv for detachably securing the carrier to the carrier chain(not shown). A second spring arm 14 supports a disk 15 whichfrictionally engagesthe head of the spool 11.

A spring plunger '16 is slidably mounted in an arm 17 and is supportedin position to engage the outer side of the disk 15. The arm 1.7 isoperatively connected to the transferrer mechanism by which the carrieris removed from the chain and lowered to its operative position. Theseconnections act to force the plunger 16 against the disk 15 as thecarrier is lowered. The tuft yarns A v rier 10 in adjacent parallelrelation.

The ,parts thus far described constitute no part of my invention and fora full devscription thereof referenc'inay be had to United StatesLetters Patent No. 1,033,589, granted to me on July 23, 1912.

In order to prevent the free passage of the tuft yarns through the tubeswhen they are loosened from the spool, as shown in Fig. 2, I provide thefriction devices shown in Figs. 3 to 6 inclusive.

In the form shown in Fig. 3 each friction device comprises a U-shapedmember 21 f formed of resilient material. When in operative position,each member embraces one side of each of two adjacent tubes between itsparallel depending portions. At their lower ends, the depending portionsof the friction device 21 are convexly curved so that they form aconstricted passage within each tube, the convex portions frictionallyengaging the yarn as it is drawn through said passage. By this means thefriction upon the yarn is to a large extent the upper end of eachfriction member is4 enlarged at 23 and the upper edges of the tubes 20are bent' outwardly as at 24 within said enlargement thereby retainingthe friction device in operative position without the use of the bar 22.As the friction members are formed of resilient material and the tubesthemselves are of thin sheet material the tubes may be bent to the formshown in Fig. 5 before the friction devices are snapped into place.

Having thus described my invention it will be evident that many changesand modifications may be made therein without departing from the spiritand scope of my invention as set forth in the claims and I do not wishtobe limited to the details herein disclosed, but

What I do claim is l. In a loom for weaving tufted fabrics, incombination, a plurality of yarn tubes, and separate friction memberssupported by said yarn tubes, each frictionally engaging the tuft yarnin two adjacent tubes at points withinsald tubes to retard the passageofv the yarn therethrough.

2. Ina'loom for weaving tufted fabrics, a carrier supporting a supply oftuft yarn, a plurality of yarn tubes supported adjacent to said carrier,a spring friction device comprising a U-shaped friction member embrac-1ng one side of each of two adjacent tubes, and means to retain saidmember in operatlve positlon.

3. In a loom for weaving tufted fabrics,

a carrier supporting a supply of tuft yarn, a plurality of'yarn tubessupported adjacent to said carrier, spring friction devices eachcomprising a U-shaped friction member embracing one side of each of twoadjacent "tubes, and means to retain said devices in .operativeposition, the depending portions o said- U-shaped members bein convexlycurved at their lower ends to frictionally engage the yarn.

4. In a /loom for weaving tufted fabrics, in combination, a carriersupporting a supply of tuft yarn, a plurality ofyarn tubes supportedadjacent to said carrier, and spring friction devices each comprising aU-shaped friction member embracing one side of each of two adjacenttubes, each member having an enlargement at its upper end and the sidesof said tubes being curved outwardly ,at their upper ends within saidenlargement and being thus effective to retain the friction member inoperative position.

In testimony ywhereof I have hereunto set my hand, in the presence oftwo subscribing witnesses.

GEORGE r. HUToHiINs.

. Witnesses:

GERTRUDE I. TowNn, J. B. SYME.

